JEE Main 2012 — Mathematics in Physics Question with Solution
JEE Main 2012 (Offline)
Question
Resistance of a given wire is obtained by measuring the current flowing in it and the voltage difference applied across it. If the percentage errors in the measurement of the current and the voltage difference are each, then error in the value of resistance of the wire is
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Show full solutionCorrect option: A
Correct answer
A
Step-by-step explanation
Similarly,
Hence
So percentage error is
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This is a previous-year question from JEE Main 2012, covering the Mathematics in Physics chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.